When the TC44Pro dongle works with an iPhone, if the prompt “”Cannot Use Accessory. Bravo HD FW Update: This accessory requires too much power” appears, it means the TC44Pro cannot be correctly recognized by iPhone, and please try to upgrade the fimrware of the TC44Pro dongle with the Windows computer. Here is how to upgrade the firmware of the TC44Pro dongle: 1. Please connect the TC44Pro dongle with the Windows computer by the suitable USB cable or adapter firstly, if the blue light of this dongle is on, then double click to open the file “Firmware upgrade tool for TC44Pro.exe”.…